Sealed joint.



'R. J. SGHWEITZER.

SEALED JOINT. APPLICATION FILED 11mm. 1910.

1,005,751. Patented 001.1111911.

MM f M RICHARD J'. SCHWEITZER, OF CI-IIQAGO, ILLINOIS.

SALED JOINT.

Specification ofLetters Patent.

Patented Oct. 1G, 1911,

Application filed .Tune 4, 1910. Serial No. 565,058.

To all whom it may concern:

Be it known that 1, RICHARD J. Sorrwnrr- ZER, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sealed Joints, of which the following is a specification.

The present invention relates `to means for producing a joint between an elbow pipe extending between the soil-stack and the bowl of a lavatory Xture.

VOne of the objects of the present invention is to form a connection between the tixture and elbow pipe, which will embody a seal to prevent the escapement 'of gas between the fixture and pipe, said seal being formed by pouring sealing substance into a well or trap formed at the upper end of the pipe, the well or trap being so located that water flowing from the bowl will enter thereinto to a greater or less degree and coperate with the sealing. substance to form a continuous unbroken seal within the trap, which will effectively prevent the escapement of gas from the elbow to the interior of the room, the water serving to lill any airholes or other imperfections which may be formed in the sealing'substance; and a further object is to so construct the trap that the water will not reach the upper edge' thereof and overflow to the outside of the joint.

A further object of the invention is to so` form the walls of thev thimble and trap that a wedging action willresult when either one of them is placed under a strain tending to move it vertically out of normal position.

Another object is to provide means for securing a sealing substance between the floor of the bowl and the top of the thimble; and a further object is to so position the parts as to enable a sealing substance to be poured into the tra from either the outside or inside of the Xture.

' The invention further consists in the features' of construction and combination of parts hereinafter described and claimed.

way 7, as is usual and well known in devices of this nature. The fixture is recessed on its bottom to provide a circumferential chamber 7, into which is entered the horizontal flange 8 of a thimble 9, the vertical portion 10 of which extends downwardly and lies within a trap or well 11.

The upper surface of the horizontal portion 8 is formed with a circumferential groove 12a, into which is inserted a. ring of suitable packing material 13a, which forms a seal between the thimble and fixture to prevent the leakage of gas there between; and the horizontal portion extends inwardly beyond the vertical portion and encircles and rests against a downwardly depending sleeve 142 formed with the body of the bowl 5 and extending from the Huid passageway 7 therein.

A trap or well 11 is formed adjacent to the upper end of an elbow pipe 12, which pipe, as shown in Fig. 1, enters into a soil stack 13 of any usual and well known construction. The trap or well is formed between the walls of the upper end 15 of the pipe 12 and the walls of a circumferential, upwardly extending collar 16, which is formed integral with the pipe 12.

It willbe noted that the upper edge of the collar 16 lies above the upper edge of the pipe 12. prevents the flowing of water over the upper edge of the collar to the outside of the pipe and into the room, which, of course, would be objectionable. It will be seen by a study of the drawings that the water under ordinary conditions will never rise above the top of the pipe 12, and this point will determine the height to which water can rise within the thimble 9. And since the collar 1G extends a substantial distance above the upper edge of the pipe 12, obviously even though the water be forced by some unusual condition above the edge of the pipe, it cannot be raised suilicicntly above its own level, which is the top of the pipe 12 to overflow.

In pouring the sealing substance into the well or trap 11, it sometimes happens that through certain chemical actions bubbles and air-holes are formed therein. If Sullicient of these are present, it might cause an outlet of gas, so that it would escape around the juncture of the pipe and thilnble. But in the present construction this would be prevented by the water which would collect in This forms a shield which.

the trap, as this water would flow down and fill up any crevices or holes of theJ above described nature and form a continuous seal which would effectively prevent the escapement of gas at the juncture of the thimble and pipe. The water will be readily gathered in the trap by reason of its striking against the top of the pipe in passing from the fixture into the pipe and splashing into the trap.

While in the drawings the sealing substance is shown as practically lling the entire trap, it is not necessary with the present construction to have this amount of sealing substance, as enough only needbe inserted in the trap to surround the bottom of the thimble 9 and vprevent movement of the thimble with respect to the fixture. This-is possible because of the water which will flow into the trap and form a seal irrespective of the sealing substance. And, although the thimble is secured to the fixture by means of bolts 17, it is deemed more practicable in actual operation to provide some fastening means for the ends of the thimble; hence, a quantity of sealing substance may be placed in the well which would be sufficient to surround the lower end of the thimble and thus anchor it in position. The sealing substance employed could, of course, be 'of any usual and well lmown composition, such, for instance, as lead-which would be poured therein in a molten condition,-o1. cement, or various V other compositions which harden and produce a solidified mass.

In positioning the sealing substance, it can be done by various methods: The thimble and fixture can rst be assembled; then the sealing substance can be poured into the trap or well and the thimble then inserted in place within the well. Or the thimble can first be inserted and the sealing substance poured into the well; and then the fixture positioned upon the thimble. Or the thimble and fixture can first be assembled in operative positions with respect to the pipe and the sealing substance poured through the opening 18 at the upper end of the collar 16.

Leakingl of gas between the fixture and the thimble is prevented by means of the packing ring 18a, and this, together with the seal effected within the trap 11, forms a closure to prevent passage of gas in any direction save through the pipe 12, which conducts it into the soil-stack 13, as is desired in the operation of devices of this nature.

By utilizing a thimble setting into a trap v of adjustment of the thimble within the` trap. Hence, no matter whether. the floor be exactly on a true le'vel or not, a tight connection can be made between the pipe and fixture,'which` will prevent the escapement of any gas therebetween.

As shown in the drawings, the lower end of the thimble 9 isformed with a sloping surface 19 on the interior thereof, and this coperates with a sloping surface 20 formed on the outer wall of the end 15 of the pipe 12, to prevent vertical movement of either the pipe or thimble out of normal position, as upon such movement the sloping faces 19 and 20 will be drawn closer to one another', thus wedging the sealing substance interposed therebetween, which wedging will tend to check the movementof the sections, and obviously, the greater the strain and the greater the movement between the sections, the tighter will the sealing substance be wedged and the greater the resistance offered thereby to the movement of the thimble Aor pipe.

By interposing the thimble into the well or trap in the manner shown in the drawings, gas, in order toescape by the thimble, will have to pass beneath the lower edge thereof; and since the lower edge is lying close to the bottom of the trap, it follows that the gas will have to force its way downward and then upward through the entire mass of sealing substance lying within the trap. Y

I claim:

l. In-a sealed joint, the combination with a lavatory fixture of a thimble secured with respect to the fixture and extending downwardly and surrounding the fluid passage in the fixture, a pipe located in alinement with the thimble and the fluid passage in the fixture, and provided VVat its upperjend with a trap adapted toreceive the lower end of the thimble, the lower end of the fluid passage being spaced away from the upper edge of the trap, whereby a portion of the fluid passing out of the fixture enters the trap and assists in the sealing operation, said trap forming a chamber for the reception of sealing substance, whereby a seal is provided between the thimble and the pipe, preventing leakage of gas therebetween, substantially as described.

2. In a sealed joint, the combination with a lavatory fixture of a thimble secured with respect to the fixture and extending downwardly and surrounding 'the fluid passage in the fixture, .a pipe located in alinement with the thimble and the fluid passage in the fixture, and provided at its upper end with a trap adapted to receive the lower end of the thimble, the lower end of the fluid passage being' spaced away from the u per edge of the trap, whereby a portion o the fluid passing out of the fixture enters'the trap and assists in the sealing operation, said an inwardly extending flange on the thimble, .engaging the fixture and serving to maintain the thimble in fixed relation to the pipe and fixture, substantially as describeth 3. In a sealed joint, the combination with a lavatory fixture of a thimble secured With respect to the fixture and extending down- Wardly and-surrounding the fluid' passage in lthe fixture, a pipe located in alinement with the thimble and the' fluid passage in the fixture, and provided at its upper end with a trap adapted to receive the lower end of the thimble, the lower end of the fluid passage being spaced away from the upper iiuid passing out of the fixture enters the trap and assists in the sealing operation,

said trap forming a chamber for the recep' tion of sealing substance, whereby a seal is provided between the thinible and the pipe, preventing leakage'of gas therebetween, and an inwardly extending fiange on the thimble, engaging the fixture and serving to maintain the thimble in fixed relation to the pipe and the fixture, and a circumferential groove in the upper face of the flange, adapted to receive and retain a ring of sealing substance, substantially as described.

RICHARD J. SCHWEITZER. Witnesses:

MARY R. FROST, WM. P. BOND. 

